Abstract: An energy storage system has a battery device, a first terminal, a second terminal, a capacitor device and a DC/DC converter. The first and second terminals are respectively connected two electrodes of the battery device, and the two electrodes have opposite polarities. The capacitor device is electrically connected to the first and second terminals in parallel. The DC/DC converter is electrically connected between the first terminal and the capacitor device. The battery device composed of at least one secondary battery and the capacitor device composed of at least one capacitor are electrically connected to each other in parallel, and by combining with the DC/DC converter, configuring the relation between the equivalent series resistor of the capacitor device and the internal resistor of the battery device, and/or configuring the upper current limit of the rated current of range the DC/DC converter, the battery cycle life is increased.

Abstract: A magnetic field shielding sheet according to one embodiment is a magnetic field shielding sheet for an antenna that includes a hollow portion formed in a central region and having a predetermined area and a pattern portion surrounding the hollow portion. The magnetic field shielding sheet includes a sheet body formed as a multi-layer sheet in which a plurality of sheets are stacked in multiple layers with adhesive layers therebetween, wherein the sheet body is a multi-layer sheet in which the plurality of sheets having a relatively lower magnetic permeability while having a relatively higher surface resistance along a stacking direction are sequentially stacked.

Abstract: A wireless power transmitter includes a first inductive element featuring a planar coil occupying a first plane and having first and second terminals, a first capacitive element connected to the first terminal, an inverter configured to provide an oscillating voltage signal to the first inductive element, through the first capacitive element, such that the first inductive element generates an oscillating magnetic field for transmitting power in response to the oscillating voltage signal, and a layer of magnetic material, disposed over the planar coil in a second plane parallel to the first plane.

Abstract: A wireless power receiving device for an electric vehicle is provided. A wireless power receiving device for an electric vehicle, according to an exemplary embodiment of the present invention, comprises: a wireless power receiving coil for receiving wireless power to be transmitted from the outside; a coil support member which has a position fixing means formed at a position corresponding to the wireless power receiving coil so as to fix the wireless power receiving coil, and which is made of a material including a magnetic substance so as to shield the magnetic field; a ferrite core including a plurality of ferrite block bodies which have predetermined areas and which are arranged on one surface of the coil support member so as to be adjacent to each other; and a plate-shaped metal plate for covering one surface of the ferrite core by having a predetermined area.

Abstract: The present disclosure describes at least a coupling circuit for powering an electric or hybrid aircraft with an output voltage. The couple circuit can include multiple connecting inputs, a charging interface, a connecting output, a high-power diodes arrangement, and a pre-charge circuit. The multiple connecting inputs can connect multiple battery packs. The charging interface can connect to a charger for charging the multiple battery packs. The connecting output can connect with a hardware controller. The high-power diodes arrangement can electrically connect to each respective connecting input and the charging interface. The high-power arrangement can include for each battery pack a first high-power diode and a second high-power diode. The pre-charge circuit can electrically connect to the high-power diode arrangement. The pre-charge circuit can include a first branch with a first switch, and a second branch in parallel with the first branch.

Abstract: A system and method for combining power from DC power sources. Each power source is coupled to a converter. Each converter converts input power to output power by monitoring and maintaining the input power at a maximum power point. Substantially all input power is converted to the output power, and the controlling is performed by allowing output voltage of the converter to vary. The converters are coupled in series. An inverter is connected in parallel with the series connection of the converters and inverts a DC input to the inverter from the converters into an AC output. The inverter maintains the voltage at the inverter input at a desirable voltage by varying the amount of the series current drawn from the converters. The series current and the output power of the converters, determine the output voltage at each converter.

Abstract: An in-vehicle power supply system includes: a main battery; an upper power supply unit configured to supply power of a power supply to the main battery; a first power supply line allocated to conduct the power of the power supply of a first voltage; a second power supply line allocated to conduct the power of the power supply of a second voltage lower than the first voltage; a step-down conversion unit configured to step down a voltage of the first power supply line to supply the power of the power supply to the second power supply line; and a capacitor. The upper power supply unit, the capacitor, and an input of the step-down conversion unit are connected to the first power supply line. The main battery and an output of the step-down conversion unit are connected to the second power supply line.

Abstract: A multi-voltage storage system for an at least partly electrically driven vehicle includes a first storage module and a second storage module having an identical rated voltage for storing electrical energy, wherein on-board consumers are connected to the second storage module at least with priority during a charging process, a heating apparatus for heating the storage modules, a switch unit which is designed to connect the first storage module and the second storage module in series for a charging process and in parallel for driving the vehicle, and a control unit, which is firstly designed to control the switch unit before and/or during a charging process such that the parallel connection of the first storage module and the second storage module is eliminated, and which is secondly designed, after elimination of the parallel connection, to activate the heating apparatus before and/or during the charging process.

Abstract: A method is for precharging a second network section with electrical energy from a first network section of a DC network. In an initial state, an initial voltage prevailing in the second network section is lower than a DC voltage prevailing in the first network section. At a first point in time, the two network sections are connected via a resistor current path having a precharging resistor. At a subsequent second point in time, as soon as the voltage in the second network section is between the initial voltage and the DC voltage, the two network sections are connected via a semiconductor switch which is situated parallel to the resistor current path and is operated in a clocked mode or in a linear mode as a controllable resistor.

Abstract: An example system includes a vehicle having a prime mover motively coupled to a drive line; a motor/generator selectively coupled to the drive line, and configured to selectively modulate power transfer between an electrical load and the drive line; a battery pack; a DC/DC converter electrically interposed between the motor/generator and the electrical load, and between the battery pack and the electrical load, the DC/DC converter comprising a DC/DC converter housing; and a covering tray positioned over a plurality of batteries of the battery pack, the covering tray comprising a connectivity layer configured to provide electrical connectivity to terminals of the plurality of batteries.

Abstract: A vehicle electrical system is equipped with a DC charging connection, a rechargeable battery, a first DC-DC converter and an electrical drive. The first DC-DC converter has a first side. This is connected to a connecting point via a first switch. The first DC-DC converter has a second side to which the electrical drive is connected. The second side is connected to the rechargeable battery via a second switch and via a connecting point or is connected to the rechargeable battery directly. The vehicle electrical system has a second DC-DC converter. This is connected to one side of the first switch.

Abstract: A power control apparatus for a distributed power supply interconnected with a power system includes: a conversion circuit that performs reverse conversion of converting power supplied from the distributed power supply from direct current to alternating current and outputting the converted power; and a control device that controls the conversion circuit. The control device changes a target value of received power at a power reception point of the power system on the basis of a predicted value of a power generation amount of the distributed power supply and a predicted value of power consumption of a demand facility, and controls an output of the conversion circuit such that the received power at the power reception point becomes a target value.

Abstract: Systems, methods, and devices for converting electric power are disclosed. Converter modules convert power in a configurable manner in conjunction with a controller.

Abstract: Aspects of the present disclosure are directed to a method for refueling an electric vehicle, the method comprising: detecting, by one or more sensors, a lock signal as a function of installing a battery pack into the electric vehicle; and enabling the battery pack, in response to installing the battery pack, wherein enabling the battery pack comprises a contactor. Aspects of the present disclosure may also be direct to a system for refueling an electric vehicle.

Abstract: A system is provided for suppressing transient currents in electrical circuits to prevent damage to switching devices such as relays and/or solid-state switching devices. An associated automatic transfer switch (ATS) system (300) includes a primary power cord terminating in cord cap (302) for receiving power from a primary power source and a secondary power cord terminating in cord cap (304) for receiving power from a secondary power source. The system (300) further includes an output (306) for connecting to an output load such as a piece of electronic equipment. The output (306) may be a female outlet such that the system (300) can be directly connected to a male power port of a piece of equipment. The system (300) further includes a micro-ATS module (308) operative to sense a power outage or degradation of signal quality for the power signal of at least the primary power source and, in response, to switch the power supply from the primary source to the secondary power source.

Abstract: A micro-network comprising includes at least two heating appliances provided with communication modules, one being used for obtaining and transmitting a first data set having at least one measurement related to the electricity consumption of the heating appliance, at least one measurement related to the electricity production of same and at least one measurement related to a state of charge of an electrical energy storage device, and subsequently controlling the power supply to the heating member. The other communication module is used for obtaining, and transmitting to a supervision module, first and second data sets including at least one item of data relating to an electrical power source, and subsequently transmitting a first setpoint state of charge related to the state of charge of the electrical energy storage device of the other heating device. The first setpoint state of charge is taken into account when controlling the power supply to the heating member.

Abstract: An apparatus includes a classification of shaded area and a light unit being configured for illumination. A solar panel is configured for at least providing an energy output during exposure of shade being classified by the classification of shaded area. A rechargeable storage device is configured for storing at least a portion of the energy output as stored energy. The stored energy recharges the rechargeable storage device. A safety device is configured for at least protecting the rechargeable storage device from substantial overcharging during exposure of direct sunlight. A cutoff threshold is configured for at least preventing a deep discharging of the rechargeable storage device. An illumination mode comprises at least the rechargeable storage device providing the stored energy, the light unit providing the illumination, the illumination lasting for at least 5 hours, and the cutoff threshold preventing the deep discharging of the rechargeable storage device.

Abstract: In a multi-terminal DC power transmission system, a common control device is connected to a plurality of individual protective devices via a first communication network. Each of the individual protective devices is configured, when detecting change in current or voltage in a corresponding protection zone, to output a fault signal to the common control device via the first communication network and open the corresponding DC circuit breaker such that the corresponding protection zone is disconnected from the multi-terminal DC power grid and deenergized. The common control device estimates a fault occurrence zone where a fault occurs among a plurality of protection zones, based on a plurality of received fault signals. The common control device requests an individual protective device corresponding to a deenergized protection zone of the protection zones excluding the fault occurrence zone to reclose the DC circuit breaker such that the deenergized protection zone is restored.

Abstract: Heat energy storage systems described in this disclosure can be used for long-term storage of large amounts of thermal energy. In some cases, such systems receive electrical energy from renewable energy sources such as solar panels or wind turbines. Using novel techniques, the heat energy storage systems covert the electrical energy to thermal energy that is stored in hot materials such as molten silicon, molten salts, or any other material that can store large amounts of heat. The heat energy storage systems incorporate extremely good thermal insulation of the thermal energy storage tank that contains the hot materials. The systems are also configured to release thermal energy in an efficient manner to an electricity-producing steam turbine using novel heat exchanger systems and techniques that are described. The energy storage systems described herein have a higher overall real-world efficiency than energy storage systems currently available.

Abstract: A method of providing power, via a plurality of power control systems, includes forming, by at least two power control systems from among the plurality of power control systems, a power network and defining, by each power control system of the power network, a power allocation schedule for a power cycle using a dynamic load scheduling model. The power allocation schedule identifies one or more designated power control systems from among the at least two of the power control systems to provide power to a load during the power cycle. For at least portion of the power cycle, the method includes providing power to the load by the one or more designated power control systems of the power network based on the power allocation schedule.